CVE - CVE-2024-46710

CVE-ID
CVE-2024-46710	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Prevent unmapping active read buffers The kms paths keep a persistent map active to read and compare the cursor buffer. These maps can race with each other in simple scenario where: a) buffer "a" mapped for update b) buffer "a" mapped for compare c) do the compare d) unmap "a" for compare e) update the cursor f) unmap "a" for update At step "e" the buffer has been unmapped and the read contents is bogus. Prevent unmapping of active read buffers by simply keeping a count of how many paths have currently active maps and unmap only when the count reaches 0.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/0851b1ec650adadcaa23ec96daad95a55bf966f0 URL:https://git.kernel.org/stable/c/0851b1ec650adadcaa23ec96daad95a55bf966f0 MISC:https://git.kernel.org/stable/c/58a3714db4d9dcaeb9fc4905141e17b9f536c0a5 URL:https://git.kernel.org/stable/c/58a3714db4d9dcaeb9fc4905141e17b9f536c0a5 MISC:https://git.kernel.org/stable/c/aba07b9a0587f50e5d3346eaa19019cf3f86c0ea URL:https://git.kernel.org/stable/c/aba07b9a0587f50e5d3346eaa19019cf3f86c0ea MISC:https://git.kernel.org/stable/c/d5228d158e4c0b1663b3983044913c15c3d0135e URL:https://git.kernel.org/stable/c/d5228d158e4c0b1663b3983044913c15c3d0135e
Assigning CNA
kernel.org
Date Record Created
20240911	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240911)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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